Oil Coolers
OMT SS Series
CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.06
Features
OMT air/oil heat exchangers have been designed to use on the return line of hydraulic systems.
The special structure of the cooler element in alu-alloy increases the conductivity quality, and the brass welding process of the conduits allows a high thermic exchange and a good resistance to pressure, obtained by using qualified materials.
MaterialsFan Steel or hard plasticFan case SteelFan protection Steel or hard plasticRadiating Mass DataMaterial AluminiumNominal Pressure 25 barTest Pressure 35 barMaximum Temperature 120°CFluid CompatibilityMineral oils, hl, hlp, water-oil emulsionInstallationWe recommend to install a by-pass valve in parallel to the heat exchanger, for its protection during start up. Ensure there are no obstacles to the air flow.
Oil Coolers
OMT SS10 Series
CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.07
Technical Features
Type Frequency Hz
Voltage V RPM Power kW
Dia. Fan
(mm)dB (A) L
(mm)Q Air
(m3/h)Cap. (lt)
Weight (kg) IP
01 50/60 230 2650/3000 0.050/0.046 170 63 125 500 0.28 6 4403 50/60 230/240 2750/3100 0.045/0.043 170 63 125 500 0.25 6 4412 DC 12 4000 0.080 167 64 158 550 0.25 5 6524 DC 24 4100 0.080 167 64 158 550 0.28 5 65
226
200
243
118
oN 4 holes Ø13
126156
55
42
176 Ø
Fan
18
G /h les
1 2 N 2 oo
L
45
176
201226
IN
Thermostat
oN 4 slots 9x13
36OUT
140
104
36
8.5
Suggested oil flow from 5 to 40 (ltr/min)
Correction FactorCST 10 15 20 32 40 50 60 80 100 200
F 0.51 0.66 0.76 1 1.22 1.4 1.6 1.9 2.1 3.4
Pres
sure
drop
Oil flow (lt/min)
)ap()rab(
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
10000
20000
30000
40000
50000
60000
70000
0 5 10 15 20 25 30 35 40 45
Spec
ific
diss
ipat
ion
heat(η)
Oil flow (lt/min)
(kcal/h °C)
25
30
35
40
45
50
55
60
65
70
5 10 15 20 25 30 35 40
AC
DC
Pressure Drop Diagram (32 cst)
Performance Diagram
Oil Coolers
OMT SS Series
CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.12
Stock Code Working Temperature ContactT01 36-26°CT02 43-33°CT03 52-42°CT04 65-55°C NA/NOT05 75-65°CT06 85-75°CT07 95-85°C
1 2T
1/2” BSP
Ø 6
Ø 26
Ch 30
67
6183
4 5.2
6
5.9
DIN43650 Connector PG09 cable clamp
Electrical DataMaximum voltage 250VcaMaximum current 16ATolerance ±5°CMaximum fixed hysteresis 15°CElectrical connection DIN43650Protection degree IP65Maximum temperature 130°CMaterialsBody BrassContacts Silver plated
Morsetto 1: apre il circuitoall’aumentare della temperaturaMorsetto 2: chiude il circuitoall’aumentare della temperaturaComune: entrata comune
55
5.19
5.82
0 2
44.5 013.1
1097
8Ø
1/2 NPT CONICOCh. 22
83
12C
Electrical DataTemperature range 0°±90°CTolerance ±5kTemperature differential 6±2kDegree of protection IP40Insulation class ITemperature rate of change <1k/minMaximum head temperature 80°CMaximum sensing bulb temperature 125°CStorage temperature -15°C 55°CTime constant <1’Contacts rating C-1:10(2.5)A/250V~ C-2:6(2.5)A/250V~Output cutoff or switching contactsSwitch action 1BInstallation location normal environmentFairlead type M20x1.5
Temperature Switch
Bimetallic Fixed Temperature Switch
Stock CodeT08
Oil Coolers
OMT SS Series
CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.13
How to Order
SS20 14 02 P
Type Fan MotorBimetallic fixed
temperature switch
Foot flanges / Electric connection
SS10 01 230V 50/60 Hz Single Phase 00 No Switch P With foot flanges
SS15 03 230/400V 50/60 Hz three phase 01 Fixed switch
36-26°C E With electric connection
SS20 14 230/400V 50/60 Hz three phase B14 02 Fixed switch
43-33°C PE With foot flanges and electric connection
SS24 12 12V CC 03 Fixed switch 52-42°C
SS30 24 24V CC 04 Fixed switch 65-55°C
G2 Arranged for hydraulic motor GR.2 05 Fixed switch
75-65°C
06 Fixed switch 85-75°C
07 Fixed switch 95-85°C
Adjustable switch
08 Adjustable switch 0-90°C